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High pitch whining noise FOC Helical Drive

focbox
geardrive

#61


:eyes:


#62

@ethel Holy fuck you’re ballsy. 35.3mph with that motor.


#63

I’m not sure what the foosticj it is. But it still hit its gearing ratio speed


#64

Dude, spinning that motor is damaging it every time you do it. It’s only gonna get worse until it locks up.

Edit: it is pretty funny though


#65

Above a certain speed, noise ceases. It’s defiantly getting worse no doubt about it.


#66

Yeah, the ring isn’t magnetic it is aluminum. I was referring to the magnets for Trdolan03’s case.


#67

I was riding even worse situation :smiley:

This is what I found after it finally locked up conveniently next to my home :smiley:


#68

and this how motors sound with real brand bearings :stuck_out_tongue:


#69

Hmm, i have two new black 6380s ordered from September. Have not opened it or anything yet. Should i be worried? @torqueboards


#70

@Linny Up to you. You can inspect them or you can exchange them for when the new ones come in.


#71

My exact situation/setup. I fixed the magnetic retainer ring and they were quiter for a bit, then as soon as I brought amps up to even 45, a twangy ringing noise around 16-20mph